Latest invention for teaching the deaf 1903
The latest instrument for enabling the deaf to hear was the acousticon, photograph showing the invention, Professor Miller R. Hutchinson trying his new device
Picture No
14113937
Media ID
46835515
Size
5855px x 3931px
(5.5MB)
Credit
© Illustrated London News Ltd. / Mary Evans
Source
Photograph in The Sphere', 1903
Date
1903



































